Editing Register a total of X unique items in the Dragonkin Laboratory section of your Boss collection log

{{Infobox Task
|description=You can receive the books in story mode. You can use the group system to get there, or teleport there with the chest from one of the other dungeons. This is a group-pvm task, but you're welcome to solo it as well.
|tier=Hard,Elite,Master,Legendary
|id=JGZV,R5JG,Z39G,MKZ4,Q3ZM,B8YK,MXDM
|wiki=Dragonkin_Laboratory
|wikialt=Dragonkin Laboratory
}}

ED2 is a Group PVM encounter, and as such, placeholders can be used if this tasked is rolled actively.

== Tiers ==

These tasks appear in tiers from Hard to Legendary, with the following breakdown:

* Hard - 2
* Elite - 2
* Master - 2
* Legendary - 1

The final task is for completion of the {{rsw|Dragonkin Swag}} achievement.

== Uniques ==

=== Contribution ===

How many drops are earned from a Croesus encounter are determined by a player's contribution to the kill. Contribution can be earned by doing most actions that lead to a kill, however, contribution can also be lost. Contribution is lost when gathering from rotten nodes and healing Croesus with red spores. A significant portion of the contribution earned each kill is from removing the energy fungi. A minimum of 60 contribution is required to obtain a unique from the boss (pet not included), and a maximum of 12 rolls on the drop table can be earned with 420+ contribution. A maximum of 10 rolls on the general drop table can be made. The 11th and 12th rolls will only roll uniques or nothing.

== Boss Drops ==

{| class="wikitable"
|-
! Drop !! Drop Rate !! Boss
|-
| {{rsw|Greater Flurry ability codex}} || Rare<sup>[1]</sup> || {{rsw|Astellarn}}
|-
| {{rsw|Diary of an Overzealous Gnome}} || Rare<sup>[2]</sup> || {{rsw|Astellarn}}
|-
| {{rsw|Greater Fury ability codex}} || Rare<sup>[1]</sup> || {{rsw|Verak Lith}}
|-
| {{rsw|Redacted Dragonkin Research}} || Rare<sup>[2]</sup> || {{rsw|Verak Lith}}
|-
| {{rsw|Greater Barge ability codex}} || 3/250 || {{rsw|Black stone dragon}}
|-
| {{rsw|Draconic energy}} || Varies || {{rsw|Black stone dragon}}<sup>[3]</sup>
|}

# This has a drop rate of 1/250 in trios, 3/500 in duos, and 3/250 in solos
# This has a base drop rate of 1/25 in a group, 7/100 solo, and 1/10 in story mode, increasing by 1/1000 for each kill
# This can also be dropped by other creatures in ED2 with the use of lucky charms

== Boss Pet ==

The {{rsw|Inert black stone crystal}} item, which unlocks the {{rsw|Bisdi}} pet has a base drop rate of 1/300. This has a {{rsw|Boss_pets#Pets_unlocked_by_drops|threshold}} of 60. The thresholds for group and solo encounters are separate. This boss pet is only dropped by the final boss in ED2.

== Tips and Tricks ==

Don't die.